Forget Miami and Palm Beach! Activist investor Gregg Hymowitz, known for his mega-deals with hedge funders like Bill Ackman and Daniel Loeb, and his wife Marcella bought some land from Bruce Willis to build a house in Parrot Cay, a 1,000-acre private island and resort in Turks and Caicos. The $6 million transaction is for five oceanfront acres in an exclusive development with a COMO hotel, owned by Singaporean hotelier Christina Ong.